Time to Heat up Contents in Tank

Question:

How long will it take to heat up the contents of my Oil Heater?

Answer:

There are many factors that will come into play when determining this. How cold is the material that you are putting into the tank? What temperature will you be heating it up too? What is the temperature in the room where the Oil Heater is? Is the Oil Heater going to be insulated? Will the material be in chunks or liquid? How much material is to be heated?

The larger the chunks, the slower it will heat. The more contact you have to the tank surface, the faster the transfer of heat. To chunk up, M&P, Shortening, Shea Butter, some Beeswax (not really hard wax), solid butters, etc; take a small E string, guitar wire and wrap around two short 3/4"-1" (19-25mm) dowels or sticks. Tape so the wire does not poke the fingers. Pull this through the block to cut the up into chunks. It is fast and saves heating energy.

Below are approximate temperature change calculations:

15 Gallon Oil Heater

Temperature Change in
Degrees F

120 volt 1500 watt
Element
10 .24 hours
20 0.48
30 0.72
40 0.96
50 1.2
60 1.44
70 1.68
80 1.92
90 2.16
100 2.4

The above chart is assuming that you are heating a liquid, that the ambient air temp is 70 degrees Fahrenheit and that you are heating a FULL tank.

35 Gallon Oil Heater

Temperature Change in Degrees F

120 volt 1500 watt Element

240 volt 3000 watt Element

10 1.12 hours .55 hours
20 2.25 1.11
30 3.37 1.66
40 4.49 2.21
50 5.61 2.76
60 6.73 3.31
70 7.85 3.86
80 8.97 4.41
90 10.09 4.96
100 11.21 5.51

The above chart is assuming that you are heating a liquid, that the ambient air temp is 70 degrees Fahrenheit and that you are heating a FULL tank.